/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package sgt.onlinetest.controller.test;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.hibernate.proxy.HibernateProxyHelper;
import sgt.onlinetest.controller.XServlet;
import sgt.onlinetest.entity.TestSession;
import sgt.onlinetest.entity.User;
import sgt.onlinetest.hibernatedao.HibernateDAOFactory;
import sgt.onlinetest.hibernatedao.HibernateUserDAO;
import sgt.onlinetest.util.ServletExtension;

/**
 *
 * @author Administrator
 */
public class EditTestSession extends XServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        HibernateDAOFactory factory = new HibernateDAOFactory();
        List<User> proctors = factory.getRoleDAO().getRoleByName("test-proctor").getAssociatedUsers();
        TestSession session = factory.getTestSessionDAO().getById(ServletExtension.getLongParam(request, "id"));
        if (request.getMethod().equalsIgnoreCase("POST")) {
            if (request.getParameter("remove") != null) {
                session.removeProctor(factory.getUserDAO().getById(ServletExtension.getLongParam(request, "idToRemove")));
            } else if (request.getParameter("add") != null) {
                session.addProctor(factory.getUserDAO().getById(ServletExtension.getLongParam(request, "idToAdd")));
            }
            factory.getTestSessionDAO().save(session);
        }
        List<User> notAssignedProctors = new ArrayList<User>(proctors);
        for (User proctor : session.getProctors()) {
            notAssignedProctors.remove(proctor);
        }
        request.setAttribute("title", "Edit session: " + session.getName());
        request.setAttribute("session", session);
        request.setAttribute("notAssignedProctors", notAssignedProctors);
        request.getRequestDispatcher("/test.editSession.tiles").forward(request, response);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
